{"id":"CVE-2024-3297","aliases":["EUVD-2024-31887","GHSA-x5mh-xcwg-v34g"],"status":"published","title":"Session establishment lock-up during replay of CASE Sigma1 messages","description":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00152,"percentile":0.04422,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2024-07-24T08:02:52Z","modified":"2026-06-17T07:43:44Z","products":[{"vendor":"connectivity standards alliance","product":"matter"},{"vendor":"csa-iot","product":"matter"},{"vendor":"matter","product":"matter"}],"references":[{"url":"https://www.bitdefender.com/support/security-advisories/session-establishment-lock-up-during-replay-of-case-sigma1-messages/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-3297"},{"url":"https://www.bitdefender.com/support/security-advisories/session-establishment-lock-up-during-replay-of-case-sigma1-messages"},{"url":"https://github.com/advisories/GHSA-x5mh-xcwg-v34g"}],"sources":{"cve":[{"id":"CVE-2024-3297","title":"Session establishment lock-up during replay of CASE Sigma1 messages","description":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.","status":"published","published":"2024-07-24T08:02:52.777Z","modified":"2024-08-01T20:05:08.48Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:34:10.613319Z"}],"euvd":[{"id":"EUVD-2024-31887","description":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.","status":"published","published":"2024-07-24T08:02:52Z","modified":"2024-08-01T20:05:08Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T03:50:39.0087Z"}],"ghsa":[{"id":"GHSA-x5mh-xcwg-v34g","title":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing...","description":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.","status":"published","published":"2024-07-24T09:30:40Z","modified":"2024-07-24T09:30:46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:57:44.165395Z"}],"nvd":[{"id":"CVE-2024-3297","description":"An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.","status":"published","published":"2024-07-24T08:15:02.88Z","modified":"2026-06-17T07:43:44.27Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:10:14.437386Z"}]}}